sys/kern/makesyscalls.sh

   1 #! /bin/sh -
   2 #       @(#)makesyscalls.sh     8.1 (Berkeley) 6/10/93
   3 # $FreeBSD$
   4
   5 set -e
   6
   7 # name of compat options:
   8 compat=COMPAT_43
   9 compat4=COMPAT_FREEBSD4
  10 compat6=COMPAT_FREEBSD6
  11 compat7=COMPAT_FREEBSD7
  12
  13 # output files:
  14 sysnames="syscalls.c"
  15 sysproto="../sys/sysproto.h"
  16 sysproto_h=_SYS_SYSPROTO_H_
  17 syshdr="../sys/syscall.h"
  18 sysmk="../sys/syscall.mk"
  19 syssw="init_sysent.c"
  20 syscallprefix="SYS_"
  21 switchname="sysent"
  22 namesname="syscallnames"
  23 systrace="systrace_args.c"
  24
  25 # tmp files:
  26 sysaue="sysent.aue.$$"
  27 sysdcl="sysent.dcl.$$"
  28 syscompat="sysent.compat.$$"
  29 syscompatdcl="sysent.compatdcl.$$"
  30 syscompat4="sysent.compat4.$$"
  31 syscompat4dcl="sysent.compat4dcl.$$"
  32 syscompat6="sysent.compat6.$$"
  33 syscompat6dcl="sysent.compat6dcl.$$"
  34 syscompat7="sysent.compat7.$$"
  35 syscompat7dcl="sysent.compat7dcl.$$"
  36 sysent="sysent.switch.$$"
  37 sysinc="sysinc.switch.$$"
  38 sysarg="sysarg.switch.$$"
  39 sysprotoend="sysprotoend.$$"
  40 systracetmp="systrace.$$"
  41
  42 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp" 0
  43
  44 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp
  45
  46 case $# in
  47     0)  echo "usage: $0 input-file <config-file>" 1>&2
  48         exit 1
  49         ;;
  50 esac
  51
  52 if [ -n "$2" -a -f "$2" ]; then
  53         . $2
  54 fi
  55
  56 sed -e '
  57 s/\$//g
  58 :join
  59         /\\$/{a\
  60
  61         N
  62         s/\\\n//
  63         b join
  64         }
  65 2,${
  66         /^#/!s/\([{}()*,]\)/ \1 /g
  67 }
  68 ' < $1 | awk "
  69         BEGIN {
  70                 sysaue = \"$sysaue\"
  71                 sysdcl = \"$sysdcl\"
  72                 sysproto = \"$sysproto\"
  73                 sysprotoend = \"$sysprotoend\"
  74                 sysproto_h = \"$sysproto_h\"
  75                 syscompat = \"$syscompat\"
  76                 syscompatdcl = \"$syscompatdcl\"
  77                 syscompat4 = \"$syscompat4\"
  78                 syscompat4dcl = \"$syscompat4dcl\"
  79                 syscompat6 = \"$syscompat6\"
  80                 syscompat6dcl = \"$syscompat6dcl\"
  81                 syscompat7 = \"$syscompat7\"
  82                 syscompat7dcl = \"$syscompat7dcl\"
  83                 sysent = \"$sysent\"
  84                 syssw = \"$syssw\"
  85                 sysinc = \"$sysinc\"
  86                 sysarg = \"$sysarg\"
  87                 sysnames = \"$sysnames\"
  88                 syshdr = \"$syshdr\"
  89                 sysmk = \"$sysmk\"
  90                 systrace = \"$systrace\"
  91                 systracetmp = \"$systracetmp\"
  92                 compat = \"$compat\"
  93                 compat4 = \"$compat4\"
  94                 compat6 = \"$compat6\"
  95                 compat7 = \"$compat7\"
  96                 syscallprefix = \"$syscallprefix\"
  97                 switchname = \"$switchname\"
  98                 namesname = \"$namesname\"
  99                 infile = \"$1\"
 100                 "'
 101
 102                 printf "/*\n * System call switch table.\n *\n" > syssw
 103                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
 104                 printf " * $%s$\n", "FreeBSD" > syssw
 105
 106                 printf "/*\n * System call prototypes.\n *\n" > sysarg
 107                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
 108                 printf " * $%s$\n", "FreeBSD" > sysarg
 109
 110                 printf "\n#ifdef %s\n\n", compat > syscompat
 111                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
 112                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
 113                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
 114
 115                 printf "/*\n * System call names.\n *\n" > sysnames
 116                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
 117                 printf " * $%s$\n", "FreeBSD" > sysnames
 118
 119                 printf "/*\n * System call numbers.\n *\n" > syshdr
 120                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
 121                 printf " * $%s$\n", "FreeBSD" > syshdr
 122                 printf "# FreeBSD system call names.\n" > sysmk
 123                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
 124                 printf "# $%s$\n", "FreeBSD" > sysmk
 125
 126                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
 127                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
 128                 printf " * $%s$\n", "FreeBSD" > systrace
 129         }
 130         NR == 1 {
 131                 gsub("[$]FreeBSD: ", "", $0)
 132                 gsub(" [$]", "", $0)
 133
 134                 printf " * created from%s\n */\n\n", $0 > syssw
 135
 136                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 137                 printf "struct sysent %s[] = {\n",switchname > sysent
 138
 139                 printf " * created from%s\n */\n\n", $0 > sysarg
 140                 printf "#ifndef %s\n", sysproto_h > sysarg
 141                 printf "#define\t%s\n\n", sysproto_h > sysarg
 142                 printf "#include <sys/signal.h>\n" > sysarg
 143                 printf "#include <sys/acl.h>\n" > sysarg
 144                 printf "#include <sys/cpuset.h>\n" > sysarg
 145                 printf "#include <sys/_semaphore.h>\n" > sysarg
 146                 printf "#include <sys/ucontext.h>\n\n" > sysarg
 147                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
 148                 printf "struct proc;\n\n" > sysarg
 149                 printf "struct thread;\n\n" > sysarg
 150                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 151                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 152                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 153                 printf "#define\tPADL_(t)\t0\n" > sysarg
 154                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 155                 printf "#else\n" > sysarg
 156                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 157                 printf "#define\tPADR_(t)\t0\n" > sysarg
 158                 printf "#endif\n\n" > sysarg
 159
 160                 printf " * created from%s\n */\n\n", $0 > sysnames
 161                 printf "const char *%s[] = {\n", namesname > sysnames
 162
 163                 printf " * created from%s\n */\n\n", $0 > syshdr
 164
 165                 printf "# created from%s\nMIASM = ", $0 > sysmk
 166
 167                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
 168                 printf "static void\nsystrace_args(int sysnum, void *params, u_int64_t *uarg, int *n_args)\n{\n" > systrace
 169                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
 170                 printf "\tswitch (sysnum) {\n" > systrace
 171
 172                 printf "static void\nsystrace_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
 173                 printf "\tswitch (sysnum) {\n" > systracetmp
 174
 175                 next
 176         }
 177         NF == 0 || $1 ~ /^;/ {
 178                 next
 179         }
 180         $1 ~ /^#[       ]*include/ {
 181                 print > sysinc
 182                 next
 183         }
 184         $1 ~ /^#[       ]*if/ {
 185                 print > sysent
 186                 print > sysdcl
 187                 print > sysarg
 188                 print > syscompat
 189                 print > syscompat4
 190                 print > syscompat6
 191                 print > syscompat7
 192                 print > sysnames
 193                 savesyscall = syscall
 194                 next
 195         }
 196         $1 ~ /^#[       ]*else/ {
 197                 print > sysent
 198                 print > sysdcl
 199                 print > sysarg
 200                 print > syscompat
 201                 print > syscompat4
 202                 print > syscompat6
 203                 print > syscompat7
 204                 print > sysnames
 205                 syscall = savesyscall
 206                 next
 207         }
 208         $1 ~ /^#/ {
 209                 print > sysent
 210                 print > sysdcl
 211                 print > sysarg
 212                 print > syscompat
 213                 print > syscompat4
 214                 print > syscompat6
 215                 print > syscompat7
 216                 print > sysnames
 217                 next
 218         }
 219         syscall != $1 {
 220                 printf "%s: line %d: syscall number out of sync at %d\n",
 221                     infile, NR, syscall
 222                 printf "line is:\n"
 223                 print
 224                 exit 1
 225         }
 226         # Returns true if the type "name" is the first flag in the type field
 227         function type(name, flags, n) {
 228                 n = split($3, flags, /\|/)
 229                 return (n > 0 && flags[1] == name)
 230         }
 231         # Returns true if the flag "name" is set in the type field
 232         function flag(name, flags, i, n) {
 233                 n = split($3, flags, /\|/)
 234                 for (i = 1; i <= n; i++)
 235                         if (flags[i] == name)
 236                                 return 1
 237                 return 0
 238         }
 239         function align_sysent_comment(column) {
 240                 printf("\t") > sysent
 241                 column = column + 8 - column % 8
 242                 while (column < 56) {
 243                         printf("\t") > sysent
 244                         column = column + 8
 245                 }
 246         }
 247         function parserr(was, wanted) {
 248                 printf "%s: line %d: unexpected %s (expected %s)\n",
 249                     infile, NR, was, wanted
 250                 exit 1
 251         }
 252         function parseline() {
 253                 f=4                     # toss number, type, audit event
 254                 argc= 0;
 255                 argssize = "0"
 256                 if ($NF != "}") {
 257                         funcalias=$(NF-2)
 258                         argalias=$(NF-1)
 259                         rettype=$NF
 260                         end=NF-3
 261                 } else {
 262                         funcalias=""
 263                         argalias=""
 264                         rettype="int"
 265                         end=NF
 266                 }
 267                 if (flag("NODEF")) {
 268                         auditev="AUE_NULL"
 269                         funcname=$4
 270                         argssize = "AS(" $6 ")"
 271                         return
 272                 }
 273                 if ($f != "{")
 274                         parserr($f, "{")
 275                 f++
 276                 if ($end != "}")
 277                         parserr($end, "}")
 278                 end--
 279                 if ($end != ";")
 280                         parserr($end, ";")
 281                 end--
 282                 if ($end != ")")
 283                         parserr($end, ")")
 284                 end--
 285
 286                 f++     #function return type
 287
 288                 funcname=$f
 289                 if (funcalias == "")
 290                         funcalias = funcname
 291                 if (argalias == "") {
 292                         argalias = funcname "_args"
 293                         if (flag("COMPAT"))
 294                                 argalias = "o" argalias
 295                         if (flag("COMPAT4"))
 296                                 argalias = "freebsd4_" argalias
 297                         if (flag("COMPAT6"))
 298                                 argalias = "freebsd6_" argalias
 299                         if (flag("COMPAT7"))
 300                                 argalias = "freebsd7_" argalias
 301                 }
 302                 f++
 303
 304                 if ($f != "(")
 305                         parserr($f, ")")
 306                 f++
 307
 308                 if (f == end) {
 309                         if ($f != "void")
 310                                 parserr($f, "argument definition")
 311                         return
 312                 }
 313
 314                 while (f <= end) {
 315                         argc++
 316                         argtype[argc]=""
 317                         oldf=""
 318                         while (f < end && $(f+1) != ",") {
 319                                 if (argtype[argc] != "" && oldf != "*")
 320                                         argtype[argc] = argtype[argc]" ";
 321                                 argtype[argc] = argtype[argc]$f;
 322                                 oldf = $f;
 323                                 f++
 324                         }
 325                         if (argtype[argc] == "")
 326                                 parserr($f, "argument definition")
 327                         argname[argc]=$f;
 328                         f += 2;                 # skip name, and any comma
 329                 }
 330                 if (argc != 0)
 331                         argssize = "AS(" argalias ")"
 332         }
 333         {       comment = $4
 334                 if (NF < 7)
 335                         for (i = 5; i <= NF; i++)
 336                                 comment = comment " " $i
 337         }
 338
 339         #
 340         # The AUE_ audit event identifier.
 341         #
 342         {
 343                 auditev = $2;
 344         }
 345
 346         #
 347         # The currently-empty flags field.
 348         #
 349         {
 350                 flags = "0";
 351         }
 352
 353         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 354             || type("NOSTD") {
 355                 parseline()
 356                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 357                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 358                 if (argc > 0) {
 359                         printf("\t\tswitch(ndx) {\n") > systracetmp
 360                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 361                         for (i = 1; i <= argc; i++) {
 362                                 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, argtype[i]) > systracetmp
 363                                 if (index(argtype[i], "*") > 0 || argtype[i] == "caddr_t")
 364                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 365                                              i - 1, \
 366                                              argname[i], argtype[i]) > systrace
 367                                 else if (substr(argtype[i], 1, 1) == "u" || argtype[i] == "size_t")
 368                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 369                                              i - 1, \
 370                                              argname[i], argtype[i]) > systrace
 371                                 else
 372                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 373                                              i - 1, \
 374                                              argname[i], argtype[i]) > systrace
 375                         }
 376                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 377                 }
 378                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 379                 printf("\t\tbreak;\n") > systracetmp
 380                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 381                     !flag("NODEF")) {
 382                         printf("struct %s {\n", argalias) > sysarg
 383                         for (i = 1; i <= argc; i++)
 384                                 printf("\tchar %s_l_[PADL_(%s)]; " \
 385                                     "%s %s; char %s_r_[PADR_(%s)];\n",
 386                                     argname[i], argtype[i],
 387                                     argtype[i], argname[i],
 388                                     argname[i], argtype[i]) > sysarg
 389                         printf("};\n") > sysarg
 390                 }
 391                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 392                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 393                             argalias) > sysarg
 394                 if (!flag("NOPROTO") && !flag("NODEF")) {
 395                         printf("%s\t%s(struct thread *, struct %s *)",
 396                             rettype, funcname, argalias) > sysdcl
 397                         printf(";\n") > sysdcl
 398                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 399                             funcalias, auditev) > sysaue
 400                 }
 401                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 402                 column = 8 + 2 + length(argssize) + 15
 403                 if (flag("NOSTD")) {
 404                         printf("%s },", "lkmressys, AUE_NULL, NULL, 0, 0, 0") > sysent
 405                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 406                 } else {
 407                         printf("%s, %s, NULL, 0, 0, %s },", funcname, auditev, flags) > sysent
 408                         column = column + length(funcname) + length(auditev) + length(flags) + 3
 409                 }
 410                 align_sysent_comment(column)
 411                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 412                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 413                     funcalias, syscall, funcalias) > sysnames
 414                 if (!flag("NODEF")) {
 415                         printf("#define\t%s%s\t%d\n", syscallprefix,
 416                             funcalias, syscall) > syshdr
 417                         printf(" \\\n\t%s.o", funcalias) > sysmk
 418                 }
 419                 syscall++
 420                 next
 421         }
 422         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 423             type("COMPAT7") {
 424                 if (flag("COMPAT")) {
 425                         ncompat++
 426                         out = syscompat
 427                         outdcl = syscompatdcl
 428                         wrap = "compat"
 429                         prefix = "o"
 430                         descr = "old"
 431                 } else if (flag("COMPAT4")) {
 432                         ncompat4++
 433                         out = syscompat4
 434                         outdcl = syscompat4dcl
 435                         wrap = "compat4"
 436                         prefix = "freebsd4_"
 437                         descr = "freebsd4"
 438                 } else if (flag("COMPAT6")) {
 439                         ncompat6++
 440                         out = syscompat6
 441                         outdcl = syscompat6dcl
 442                         wrap = "compat6"
 443                         prefix = "freebsd6_"
 444                         descr = "freebsd6"
 445                 } else if (flag("COMPAT7")) {
 446                         ncompat7++
 447                         out = syscompat7
 448                         outdcl = syscompat7dcl
 449                         wrap = "compat7"
 450                         prefix = "freebsd7_"
 451                         descr = "freebsd7"
 452                 }
 453                 parseline()
 454                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 455                     !flag("NODEF")) {
 456                         printf("struct %s {\n", argalias) > out
 457                         for (i = 1; i <= argc; i++)
 458                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 459                                     "char %s_r_[PADR_(%s)];\n",
 460                                     argname[i], argtype[i],
 461                                     argtype[i], argname[i],
 462                                     argname[i], argtype[i]) > out
 463                         printf("};\n") > out
 464                 }
 465                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 466                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 467                             argalias) > sysarg
 468                 if (!flag("NOPROTO") && !flag("NODEF")) {
 469                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 470                             rettype, prefix, funcname, argalias) > outdcl
 471                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 472                             prefix, funcname, auditev) > sysaue
 473                 }
 474                 if (flag("NOSTD")) {
 475                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0 },",
 476                             "0", "lkmressys", "AUE_NULL") > sysent
 477                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 478                             length("lkmressys") + length("AUE_NULL") + 3)
 479                 } else {
 480                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s },",
 481                             wrap, argssize, funcname, auditev, flags) > sysent
 482                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 483                             length(funcname) + length(auditev) + \
 484                             length(flags) + 4)
 485                 }
 486                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 487                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 488                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 489                 if (flag("COMPAT")) {
 490                         printf("\t\t\t\t/* %d is old %s */\n",
 491                             syscall, funcalias) > syshdr
 492                 } else if (!flag("NODEF")) {
 493                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 494                             prefix, funcalias, syscall) > syshdr
 495                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 496                 }
 497                 syscall++
 498                 next
 499         }
 500         type("LIBCOMPAT") {
 501                 ncompat++
 502                 parseline()
 503                 printf("%s\to%s();\n", rettype, funcname) > syscompatdcl
 504                 printf("\t{ compat(%s,%s), %s, NULL, 0, 0, %s },",
 505                     argssize, funcname, auditev, flags) > sysent
 506                 align_sysent_comment(8 + 9 + \
 507                     length(argssize) + 1 + length(funcname) + length(auditev) + length(flags) + 4)
 508                 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
 509                 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
 510                     funcalias, syscall, funcalias) > sysnames
 511                 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n",
 512                     syscallprefix, funcalias, syscall) > syshdr
 513                 printf(" \\\n\t%s.o", funcalias) > sysmk
 514                 syscall++
 515                 next
 516         }
 517         type("OBSOL") {
 518                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0 },") > sysent
 519                 align_sysent_comment(34)
 520                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 521                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 522                     $4, syscall, comment) > sysnames
 523                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 524                     syscall, comment) > syshdr
 525                 syscall++
 526                 next
 527         }
 528         type("UNIMPL") {
 529                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0 },\t\t\t/* %d = %s */\n",
 530                     syscall, comment) > sysent
 531                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 532                     syscall, syscall, comment) > sysnames
 533                 syscall++
 534                 next
 535         }
 536         {
 537                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 538                 exit 1
 539         }
 540         END {
 541                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 542
 543                 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0)
 544                         printf "#include \"opt_compat.h\"\n\n" > syssw
 545
 546                 if (ncompat != 0) {
 547                         printf "\n#ifdef %s\n", compat > sysinc
 548                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 549                         printf "#else\n" > sysinc
 550                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 551                         printf "#endif\n" > sysinc
 552                 }
 553
 554                 if (ncompat4 != 0) {
 555                         printf "\n#ifdef %s\n", compat4 > sysinc
 556                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 557                         printf "#else\n" > sysinc
 558                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 559                         printf "#endif\n" > sysinc
 560                 }
 561
 562                 if (ncompat6 != 0) {
 563                         printf "\n#ifdef %s\n", compat6 > sysinc
 564                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 565                         printf "#else\n" > sysinc
 566                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 567                         printf "#endif\n" > sysinc
 568                 }
 569
 570                 if (ncompat7 != 0) {
 571                         printf "\n#ifdef %s\n", compat7 > sysinc
 572                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 573                         printf "#else\n" > sysinc
 574                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 575                         printf "#endif\n" > sysinc
 576                 }
 577
 578                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 579                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 580                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 581                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 582
 583                 printf("\n#undef PAD_\n") > sysprotoend
 584                 printf("#undef PADL_\n") > sysprotoend
 585                 printf("#undef PADR_\n") > sysprotoend
 586                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 587
 588                 printf("\n") > sysmk
 589                 printf("};\n") > sysent
 590                 printf("};\n") > sysnames
 591                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 592                     > syshdr
 593                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 594                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 595         } '
 596
 597 cat $sysinc $sysent >> $syssw
 598 cat $sysarg $sysdcl \
 599         $syscompat $syscompatdcl \
 600         $syscompat4 $syscompat4dcl \
 601         $syscompat6 $syscompat6dcl \
 602         $syscompat7 $syscompat7dcl \
 603         $sysaue $sysprotoend > $sysproto
 604 cat $systracetmp >> $systrace
 605